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Finding the Fourth Proportional to 426,074.91, 587,982.90 and 235,088.28

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Solution

The fourth proportional to 426,074.91, 587,982.90 and 235,088.28 is: 324,421.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,074.91 : 587,982.90 = 235,088.28 : x
  2. Step 2: Convert to fraction form
    426,074.91/587,982.90 = 235,088.28/x
  3. Step 3: Cross multiply
    426,074.91x = 587,982.90 × 235,088.28
  4. Step 4: Simplify right side
    426,074.91x = 138,227,888,630.41
  5. Step 5: Solve for x
    x = 138,227,888,630.41/426,074.91
  6. Step 6: Final answer
    x = 324,421.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.